Life On Earth 4- Energy In Ecosystems Flashcards
1
Q
State the three ways by which the majority of energy is lost in energy transfers from one level to the next in a good chain
A
Heat, movement, waste materials
2
Q
State what happens to the energy not lost
A
Passed to the next level and used for growth
3
Q
Define a pyramid of numbers
A
The total number of individual organisms at each level in a food chain in an ecosystem
4
Q
Define a pyramid of numbers
A
A diagram which shows the quantity of energy at each level in a food chain
5
Q
Explain why pyramids of numbers often have an irregular shape
A
Usually because they start with a large producer e.g. oak tree
